Caltech

Title: Physics with photons, from quantum to bio

Abstract: Methods and concepts from quantum optics enable a surprisingly broad range of novel explorations in modern science and engineering. On one end of the spectrum, we have experiments on real-time quantum feedback that probe the physics of measurement back-action and wave-function "collapse." Such work also begins to extend the invaluable engineering methodology of automatic servo control into the developing realm of quantum technology. In another lab, we have started to apply quantum optics techniques to the study of fast conformational dynamics in biomolecules. Here we see new biophysical assays emerging from the experimental techniques and analytical tools of quantum optics. In addition to being great fun, this brand of interdisciplinary physics suggests new educational agendas for a new scientific era.